Most patients with myocardial ischemia have pain located in the precordial area and the posterior sternum, which may radiate to the shoulders and the back. Back pain is characterized by inaccurate localization and short duration. 1. Related to chest tightness and chest pain: myocardial ischemia patients’ back pain often appears after chest tightness and chest pain, and with the improvement of chest tightness and chest pain symptoms, back pain can also be reduced. 2. Unclear localization: It is often difficult to specify the specific pain site of back pain caused by myocardial ischemia, while back pain caused by other lesions such as back muscle damage or trauma can often be precisely localized. 3. Short duration: myocardial ischemia back pain often does not last long, mostly like angina pectoris, it lasts a few minutes, usually no more than 15 minutes, not to mention hours. When myocardial ischemia back pain occurs, it is necessary to go to the hospital in time, through the electrocardiogram and cardiac ultrasound and other examinations to clarify the diagnosis, timely treatment, it is recommended to maintain a regular lifestyle in daily life, avoid emotional excitement or strenuous exercise.